y+3.9=

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Solution for y+3.9= equation: 


Simplifying
y + 3.9 = 0

Reorder the terms:
3.9 + y = 0

Solving
3.9 + y = 0

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-3.9' to each side of the equation.
3.9 + -3.9 + y = 0 + -3.9

Combine like terms: 3.9 + -3.9 = 0.0
0.0 + y = 0 + -3.9
y = 0 + -3.9

Combine like terms: 0 + -3.9 = -3.9
y = -3.9

Simplifying
y = -3.9

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